Home / 216,075.04-324,147.20-91,417.12

Finding the Fourth Proportional to 216,075.04, 324,147.20 and 91,417.12

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Solution

The fourth proportional to 216,075.04, 324,147.20 and 91,417.12 is: 137,140.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,075.04 : 324,147.20 = 91,417.12 : x
  2. Step 2: Convert to fraction form
    216,075.04/324,147.20 = 91,417.12/x
  3. Step 3: Cross multiply
    216,075.04x = 324,147.20 × 91,417.12
  4. Step 4: Simplify right side
    216,075.04x = 29,632,603,480.06
  5. Step 5: Solve for x
    x = 29,632,603,480.06/216,075.04
  6. Step 6: Final answer
    x = 137,140.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.